CN107388988A - Tunnel oval-shaped degree determination method and system - Google Patents
Tunnel oval-shaped degree determination method and system Download PDFInfo
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- CN107388988A CN107388988A CN201710625565.2A CN201710625565A CN107388988A CN 107388988 A CN107388988 A CN 107388988A CN 201710625565 A CN201710625565 A CN 201710625565A CN 107388988 A CN107388988 A CN 107388988A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2408—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring roundness
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Abstract
The invention discloses a kind of tunnel oval-shaped degree determination method and system.Described method includes, by obtaining tunnel contour coordinate point data, generating elliptic curve；Then best fit elliptic curve is calculated；The oval ovality of best fit is calculated again.Described system includes tunnel scanning subsystem, data import modul, fitted ellipse computing module, best fit elliptic curve calculations module, ovality computing module, flying spot data monitoring module, judge module and display module.The present invention is fitted elliptic curve using iterative calculation and calculates ovality, removes flying spot, and the number of test points evidence for finally calculating participation fitted ellipse is as more as possible, and the minimum fitted ellipse curve of ovality is calculated in finally simulation.By the deformation monitoring to tunnel, potential safety hazard accumulation can be prevented to be converted into the security incident cost of accident reduction, potential safety hazard common in constructing tunnel and operation security management is found in time, effectively avoid the generation of considerable safety liability accident.
Description
Technical field
The present invention relates to Tunnel testing technology, more particularly to a kind of tunnel oval-shaped degree determination method and system.
Background technology
With urbanization process and the extensive development in city, efficient underground rail friendship is being built in each big city in China
Lead to net to solve the problems, such as increasingly severe traffic jam.Shield method is fast with its driving speed, and automation is high and does not influence ground
Traffic the advantages that facility in subway tunnel structure construction with being widely used.After subway tunnel is built up, due to residing
The diseases such as leak, crack, sinking occur in reason, the tunnel such as matter condition difference or the construction of periphery closing foundation ditch, tunnel structure
Security relationship the life and property safety of broad masses.
Duct pieces of shield tunnel requires it is circular in theory, but because shield duct piece is producing, install, using process
In occur deviation, therefore using oval figure（Also it is out-of-roundness）To quantify the out-of-roundness of duct pieces of shield tunnel.Ovality is
The important parameter of the overall deformation of quantitative analysis shield duct piece, subway tunnel shield method detail design, examination and protection specification are all
Ovality detection to shield duct piece is provided and required.With the development of the city, shield tunnel is increasing, to tunnel
The detection of road ovality also becomes to become more and more important.
The calculating of tunnel oval-shaped degree, it is important to be the oval long semi-minor axis for trying to achieve tunnel duct piece.The actual length in tunnel half
How axle not necessarily in the horizontal direction, according to substantial amounts of actual tunnel profile coordinate points determines that length is calculated in tunnels mimic
Semiaxis turns into the key of the software systems.Domestic and international tunnel deformation mainly detects to tunnel clearance, is according to tunnel knot
Structure inner outline measurement data, considering line condition, vehicle dimension and technical parameter, orbit parameter, pipeline arrangement etc.
On the basis of, whether effective headroom between detection device gauge and tunnel structure inner outline meets standard requirement, detection rail top
Whether identity distance meets the requirement of track structure standard from the height of tunnel floor, and Adjusted Option is proposed if being unsatisfactory for, and is circuit, rail
The adjustment in road provides foundation.Domestic existing measurement means can be divided into direct method and indirect method.Most straightforward approach is sash weight method.
This method is using tape measure and the major semiaxis and semi-minor axis of vertical measurement tunnel duct piece.Major semiaxis heavy water square is multiple with tape measure upwards
Measure, find most long side and be considered major semiaxis；Semi-minor axis makes plumb line can determine that by major semiaxis center by hanging vertical.
The applicable premise of this method is to think that oval semi-minor axis is parallel with vertical, but the major semiaxis in actual conditions tunnel is not necessarily
In the horizontal direction, therefore there is certain narrow-mindedness.The long and short semiaxis of indirect method test section direct measurement, by measuring tunnel
Surface profile, the anglec of rotation of the long semi-minor axis of ovality and ellipse, common measurement tunnel lubrication groove are obtained using ellipse fitting
The method of wide surface coordinate has total powerstation profile scanning method, laser tunnel cross-section instrument, portable 3 D scanning system（GRP5000
System）It is proposed to obtain tunnel Internal periphery data point using laser tunnel cross-section instrument, gone out based on MATLAB software developments tunnel oval-shaped
The calculation procedure of degree.The program, which imports, need to manually handle laser cross section instrument profile scanning result, and automatic Fitting is oval, and calculates
Go out the ovality in oval major axis, short axle and tunnel.
More, the different coordinate points of tunnel contour coordinate point data based on the scanning generation of tunnel GRP5000 scanning systems
The elliptic curve of data fitting generation is different, it is difficult to find best fit elliptic curve.Therefore, the application scans in tunnel
Secondary research and development are carried out on the basis of system, the continuous scanning-tunnelling surface of the system, post-processing can extract individual tunnel profile and break
Face obtains a large amount of continuous coordinate points, utilizes the secondary tunnel oval-shaped degree analyzing software system of research and development of these coordinate points, its main work(
Can be that tunnel cross-section ovality, major semiaxis, semi-minor axis and ovality are calculated based on true tunnel contour coordinate points digital simulation
Deng the auxiliary reference data as Tunnel Engineering supervisor, tunnel safety operation is ensured.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of tunnel oval-shaped degree determination method and it is
System, tunnel cross-section ovality, major semiaxis, semi-minor axis and ovality etc. are calculated based on true tunnel contour coordinate points digital simulation
As the auxiliary reference data of Tunnel Engineering supervisor, potential safety hazard accumulation can be prevented to be converted into the security incident of accident reduction
Cost, potential safety hazard common in constructing tunnel and operation security management is found in time, effectively avoid considerable safety from blaming
Have a job thus generation.
The purpose of the present invention is achieved through the following technical solutions：A kind of tunnel oval-shaped degree determination method, base
In the detection data of tunnel scanning system collection, by obtaining tunnel contour coordinate point data, elliptic curve is generated；Then calculate
Best fit elliptic curve；The oval ovality of best fit is calculated again.
Further, in the step of choosing real tunnel contour coordinate point data, including rail top is obtained with upper inner wheel
The step of wide coordinate point data.
Further, in the step of choosing real tunnel contour coordinate point data, including obtain in tunnel-liner
The range data of surface image view data and tunnel-liner surface each point apart from track centerline.
Further, in the step of calculating best fit elliptic curve, including the step of removal flying spot data.
Further, in the step of calculating best fit elliptic curve, single bore tunnel profile coordinate is calculated first
The initial fitted ellipse curve of point data, then calculate the initial fitted ellipse curve of single bore tunnel profile coordinate point data
Ovality, the step of removing flying spot is then performed, then single bore tunnel profile coordinate points are determined using successive ignition fitting
The best fit elliptic curve of data.
Further, it is being fitted using successive ignition to determine the best fit of single bore tunnel profile coordinate point data
In the step of elliptic curve, on the premise of ovality minimum is made, by judge ovality whether be recurrence reduce trend come
Determine the number of execution iteration；If the ovality that n-th calculates is less than the ovality of (n-1)th calculating, removal is jumped back to
In the step of flying spot data, continue iterative calculation until it is determined that the best fit of the single bore tunnel profile coordinate point data is ellipse
Circular curve, if the ovality that n-th calculates is more than the ovality of (n-1)th calculating, terminate to iterate to calculate.
Further, after best fit elliptic curve is calculated, including the oval major semiaxis of best fit, short by half is calculated
The step of axle, major axis and short axle.
Further, the step of including data import, for selectively importing the detection of tunnel scanning system collection
Data.
Further, including step display, for the result after handling tunnel contour coordinate point data, bag to be presented
Include the real tunnel contour coordinate point data elliptic curve of display, fitted ellipse curve, best fit elliptic curve, ovality,
Major semiaxis, semi-minor axis, major axis and short axle, and in the Fitting Calculation, simulation is shown according to the quantity of fitting data file in good time
Calculating progress, meanwhile, simulation result of calculation is shown by the form of picture.
A kind of tunnel oval-shaped degree testing and analysis system, including tunnel scanning subsystem, for gathering tunnel contour coordinate points
Data, and export, further comprise：
Data import modul, for importing tunnel contour coordinate point data, described real tunnel contour coordinate points packet
Include：Internal periphery coordinate point data more than rail top；
Fitted ellipse computing module, for calculating initial fitted ellipse curve；
Best fit elliptic curve calculations module, for calculating best fit elliptic curve calculations module；
Ovality computing module, for calculating ovality, including：Calculate the ovality of initial fitted ellipse curve and calculate optimal
The ovality of fitted ellipse curve；
Flying spot data monitoring module, for receiving the feedback information of ovality testing result, and flying spot data is removed in time；
Judge module, for the size of the ovality of the fitted ellipse curve of more single bore tunnel profile coordinate point data,
And judge whether the ovality that n-th calculates is less than the ovality of (n-1)th calculating, remove flying spot number if it is, jumping back to
According to the step of in, continue iterative calculation until it is determined that the best fit of the single bore tunnel profile coordinate point data is oval bent
Line, if it is not, then terminating iterative calculation；
Display module, described display module include the first display sub-module and the second display sub-module, the first display sub-module
For showing true tunnel contour coordinate point data elliptic curve, and the fitted ellipse curve that is calculated by simulating and most
Good fitted ellipse curve, and ovality, major semiaxis, semi-minor axis, major axis and the short axle being calculated；Second display sub-module,
For in the Fitting Calculation, showing simulation calculating progress in good time according to the quantity of fitting data file, meanwhile, simulation is calculated into knot
Fruit is shown by the form of picture.
The beneficial effects of the invention are as follows：
（1）Embodiments of the invention one are based on GRP5000 scanning systems, there is provided a kind of ovality analyzing software system, design
User interface it is concise, easy to operate, main interface uses dialog box pattern, and relevant information or parameter can be inputted in main interface,
It can simultaneously simulate every time and calculate multiple tunnel cross-section ovalitys.By loading the scan data of GRP5000 scanning systems, using repeatedly
The mode in generation is fitted elliptic curve calculations, and calculates ovality, removes flying spot, the survey for finally calculating participation fitted ellipse
Pilot data are as more as possible, and the minimum fitted ellipse curve of ovality is calculated in finally simulation.Supervised by the deformation to tunnel
Survey, potential safety hazard accumulation can be prevented to be converted into the security incident cost of accident reduction, make constructing tunnel and operation security management
In common potential safety hazard found in time, effectively prevent the generation of considerable safety liability accident.
（2）The present invention effectively reduces the safety management cost of tunnel safety real-time monitoring system, significantly improves management
Efficiency, and positive social benefit is generated, guidance and the foundation of decision-making are provided for Tunnel Project management, is favorably improved item
Mesh management level decision-making capability, accelerate speed of decision, team provides advanced Risk Management Idea and preventive means for cooperation labor service, can
To ensure tunnel construction safety, engineering loss is reduced, enables the competitiveness General Promotion of enterprise.
（3）The detection based on tunnel oval-shaped degree of the invention, can according to tunnel oval-shaped degree testing result and tunnel other detections,
Monitoring result provides scientific basis for tunnel maintenance jointly.Data result will be tested and analyzed can be with the real-time security monitoring of incoming tunnel
System, carry out multiple spot and share, enable that project is at different levels, each work area administrative staff mutually realize different place's information sharing, cooperated, it is real
Show the integrated of the project organization, improve the operating efficiency of the project organization and the management and control energy to safety management in construction site situation
Power, and in the platform for virtually establishing a study and supervision so that the raising of the project entirety efficiency of management generates considerable
Social benefit.
（4）The present invention establishes health account, including tunnel is put down by GRP5000 scanning systems by surface holographic imaging
Face expanded view, tunnel mileage sectional drawing（Clearance diagram）, tunnel cross-section coordinate, tunnel defect statistical chart, tunnel defect detail list, rail
The essential informations such as spacing, the single Internal periphery of generation is up to more than 7000 individual coordinate points.Moreover, by same tunnel different times
It is scanned, is contrasted by front and rear health account achievement, development intuitively can be whether there is to tunnel defect and analyzed, when need to be to tunnel
When road carries out risk assessment and Disease Analysis, efficiency is improved.
（5）The present invention has further the advantage that：A. tunnel-liner surface scan takes continuous scanning, and any mileage can carry
Take tunnel contour coordinate point data；B. individual tunnel profiled outline is up to more than 7000 individual coordinate point datas；C.GRP5000 is swept
Abnormal ovality section disease nearby, such as infiltration, crack, chip off-falling can be investigated by retouching achievement；D. different times tunnel is passed through
The scanning of GRP5000 scanning systems, different times tunnel deformation situation can be contrasted, grasp tunnel whether there is disease incidence in time, be
Tunnel regular maintenance provides scientific basis, suitable for circular tunnel deformation monitoring, detection etc..
Brief description of the drawings
Fig. 1 is the method and step flow chart of the present invention.
Fig. 2 is the program execution flow figure of the present invention.
Fig. 3 is the method and step flow chart of embodiments of the invention one.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
It is as described below.
【Embodiment one】
Such as Fig. 1, shown in 2, a kind of tunnel oval-shaped degree determination method, based on the detection data of tunnel scanning system collection, lead to
Acquisition tunnel contour coordinate point data is crossed, generates elliptic curve；Then best fit elliptic curve is calculated；Best fit is calculated again
Oval ovality.
Further, in the step of choosing real tunnel contour coordinate point data, including rail top is obtained with upper inner wheel
The step of wide coordinate point data.
Further, in the step of choosing real tunnel contour coordinate point data, including obtain in tunnel-liner
The range data of surface image view data and tunnel-liner surface each point apart from track centerline.
Further, in the step of calculating best fit elliptic curve, including the step of removal flying spot data.
Further, in the step of calculating best fit elliptic curve, single bore tunnel profile coordinate is calculated first
The initial fitted ellipse curve of point data, then calculate the initial fitted ellipse curve of single bore tunnel profile coordinate point data
Ovality, the step of removing flying spot is then performed, then single bore tunnel profile coordinate points are determined using successive ignition fitting
The best fit elliptic curve of data.
Further, it is being fitted using successive ignition to determine the best fit of single bore tunnel profile coordinate point data
In the step of elliptic curve, on the premise of ovality minimum is made, by judge ovality whether be recurrence reduce trend come
Determine the number of execution iteration；If the ovality that n-th calculates is less than the ovality of (n-1)th calculating, removal is jumped back to
In the step of flying spot data, continue iterative calculation until it is determined that the best fit of the single bore tunnel profile coordinate point data is ellipse
Circular curve, if the ovality that n-th calculates is more than the ovality of (n-1)th calculating, terminate to iterate to calculate.
Further, after best fit elliptic curve is calculated, including the oval major semiaxis of best fit, short by half is calculated
The step of axle, major axis and short axle.
Further, the step of including data import, for selectively importing the detection of tunnel scanning system collection
Data.
Further, including step display, for the result after handling tunnel contour coordinate point data, bag to be presented
Include the real tunnel contour coordinate point data elliptic curve of display, fitted ellipse curve, best fit elliptic curve, ovality,
Major semiaxis, semi-minor axis, major axis and short axle, and in the Fitting Calculation, simulation is shown according to the quantity of fitting data file in good time
Calculating progress, meanwhile, simulation result of calculation is shown by the form of picture.
A kind of tunnel oval-shaped degree testing and analysis system, including tunnel scanning subsystem, for gathering tunnel contour coordinate points
Data, and export, further comprise：
Data import modul, for importing tunnel contour coordinate point data, described real tunnel contour coordinate points packet
Include：Internal periphery coordinate point data more than rail top；
Fitted ellipse computing module, for calculating initial fitted ellipse curve；
Best fit elliptic curve calculations module, for calculating best fit elliptic curve calculations module；
Ovality computing module, for calculating ovality, including：Calculate the ovality of initial fitted ellipse curve and calculate optimal
The ovality of fitted ellipse curve；
Flying spot data monitoring module, for receiving the feedback information of ovality testing result, and flying spot data is removed in time；
Judge module, for the size of the ovality of the fitted ellipse curve of more single bore tunnel profile coordinate point data,
And judge whether the ovality that n-th calculates is less than the ovality of (n-1)th calculating, remove flying spot number if it is, jumping back to
According to the step of in, continue iterative calculation until it is determined that the best fit of the single bore tunnel profile coordinate point data is oval bent
Line, if it is not, then terminating iterative calculation；
Display module, described display module include the first display sub-module and the second display sub-module, the first display sub-module
For showing true tunnel contour coordinate point data elliptic curve, and the fitted ellipse curve that is calculated by simulating and most
Good fitted ellipse curve, and ovality, major semiaxis, semi-minor axis, major axis and the short axle being calculated；Second display sub-module,
For in the Fitting Calculation, showing simulation calculating progress in good time according to the quantity of fitting data file, meanwhile, simulation is calculated into knot
Fruit is shown by the form of picture.
In one of embodiments of the invention, it is preferred that gather tunnel contour coordinate points using GRP5000 scanning systems
According to as shown in figure 3, further comprising following steps：
S101：By data import modul, number is imported from the tunnel contour coordinate point data of GRP5000 scanning systems collection
According to；
S102：Calculate initial fitted ellipse and initial ovality；
S103：Remove flying spot data；
S104：N-th fitted ellipse is iterated to calculate, and calculates the ovality Dn of n-th fitted ellipse；
S105：Judge ovality whether be recurrence reduce trend come determine perform iteration number, if n-th calculate it is ellipse
Circularity be less than (n-1)th time calculating ovality, then jump back to remove flying spot data the step of in, continue iterative calculation until it is determined that
The best fit elliptic curve of the single bore tunnel profile coordinate point data, if the ovality that n-th calculates is more than (n-1)th
The ovality of secondary calculating, then terminate to iterate to calculate.
In embodiments of the invention one, test point is acquired using tunnel GRP5000 based on tunnel Internal periphery data
Data, GRP5000 Tunnel testing cars be it is a kind of integrate light, mechanical, electrical technology, multi-functional light-duty tunnel checks dolly,
The dolly is equipped with a generating laser that can be rotate at high speed, and when dolly is walked in orbit, laser transmitting swashs
Light carries out full section scanning to tunnel surface in the form of helical lines, by analyzing transmitting and receiving laser signal（Intensity and
Phase difference）, can obtain tunnel-liner inner surface imaged image and tunnel-liner surface each point away from track centerline away from
From above-mentioned Measurement results form the data information of tunnel state measurement and tunnel clearance measurement, and these data informations can be used for limiting
Boundary analyzes and the state analysis of tunnel surface disease, has directive significance for tunnel operation maintenance.By gathering mass data,
Scan obtained individual tunnel section Internal periphery number of coordinates strong point up to more than 7000 using GRP5000, by cover rail top with
Upper inner wheel exterior feature coordinate points increase test data point, and the coordinate points data volume for calculating participation fitted ellipse is big so that final simulation meter
Calculate result and be more nearly the minimum situation of ovality.Single section coordinate points are fitted by successive ignition, and repeatedly fitting obtains most
Good fitted ellipse curve, finally give the minimum ovality curve of ovality.The accurate measurements of the deformation to tunnel are finally realized,
Potential safety hazard accumulation can be prevented to be converted into the security incident cost of accident reduction, made in constructing tunnel and operation security management often
The potential safety hazard seen is found in time, effectively prevent the generation of considerable safety liability accident.
Described above is only the preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form, the exclusion to other embodiment is not to be taken as, and can be used for various other combinations, modification and environment, and can be at this
In the text contemplated scope, it is modified by the technology or knowledge of above-mentioned teaching or association area.And those skilled in the art are entered
Capable change and change does not depart from the spirit and scope of the present invention, then all should be in the protection domain of appended claims of the present invention
It is interior.
Claims (10)
1. a kind of tunnel oval-shaped degree determination method, the detection data based on tunnel scanning system collection, it is characterised in that logical
Acquisition tunnel contour coordinate point data is crossed, generates elliptic curve；Then best fit elliptic curve is calculated；Best fit is calculated again
Oval ovality.
A kind of 2. tunnel oval-shaped degree determination method according to claim 1, it is characterised in that：Choosing real tunnel
In the step of road profile coordinate point data, including the step of acquisition rail top above Internal periphery coordinate point data.
A kind of 3. tunnel oval-shaped degree determination method according to claim 1, it is characterised in that：Choosing real tunnel
In the step of road profile coordinate point data, including obtain tunnel-liner inner surface imaged image data and tunnel-liner surface it is each
Range data of the point apart from track centerline.
A kind of 4. tunnel oval-shaped degree determination method according to claim 1, it is characterised in that：Calculating best fit
In the step of elliptic curve, including the step of removal flying spot data.
A kind of 5. tunnel oval-shaped degree determination method according to claim 4, it is characterised in that：Calculating best fit
In the step of elliptic curve, the initial fitted ellipse curve of single bore tunnel profile coordinate point data is calculated first, then is calculated
The ovality of the initial fitted ellipse curve of single bore tunnel profile coordinate point data, the step of removing flying spot is then performed,
It is fitted again using successive ignition to determine the best fit elliptic curve of single bore tunnel profile coordinate point data.
A kind of 6. tunnel oval-shaped degree determination method according to claim 5, it is characterised in that：Using successive ignition
In the step of fitting is to determine the best fit elliptic curve of single bore tunnel profile coordinate point data, make ovality minimum
On the premise of, by judge ovality whether be recurrence reduce trend come determine perform iteration number；If n-th calculates
Ovality be less than (n-1)th time calculating ovality, then jump back to remove flying spot data the step of in, continue iterative calculation until
The best fit elliptic curve of the single bore tunnel profile coordinate point data is determined, if the ovality that n-th calculates is more than
The ovality of (n-1)th calculating, then terminate to iterate to calculate.
A kind of 7. tunnel oval-shaped degree determination method according to claim 1, it is characterised in that：Calculating optimal plan
After closing elliptic curve, including the step of major semiaxis of calculating best fit ellipse, semi-minor axis, major axis and short axle.
8. a kind of tunnel oval-shaped degree determination method according to claim 1, it is characterised in that imported including data
Step, for selectively importing the detection data of tunnel scanning system collection.
A kind of 9. tunnel oval-shaped degree determination method according to claim 1, it is characterised in that including step display,
For the result after handling tunnel contour coordinate point data, including the real tunnel contour coordinate point data of display to be presented
Elliptic curve, fitted ellipse curve, best fit elliptic curve, ovality, major semiaxis, semi-minor axis, major axis and short axle, Yi Ji
During the Fitting Calculation, simulation calculating progress is shown in good time according to the quantity of fitting data file, meanwhile, simulation result of calculation is passed through
The form of picture is shown.
10. a kind of tunnel oval-shaped degree testing and analysis system, it is characterised in that including tunnel scanning subsystem, for gathering tunnel
Profile coordinate point data, and export, further comprise：
Data import modul, for importing tunnel contour coordinate point data, described real tunnel contour coordinate points packet
Include：Internal periphery coordinate point data more than rail top；
Fitted ellipse computing module, for calculating initial fitted ellipse curve；
Best fit elliptic curve calculations module, for calculating best fit elliptic curve calculations module；
Ovality computing module, for calculating ovality, including：Calculate the ovality of initial fitted ellipse curve and calculate optimal
The ovality of fitted ellipse curve；
Flying spot data monitoring module, for receiving the feedback information of ovality testing result, and flying spot data is removed in time；
Judge module, for the size of the ovality of the fitted ellipse curve of more single bore tunnel profile coordinate point data,
And judge whether the ovality that n-th calculates is less than the ovality of (n-1)th calculating, remove flying spot number if it is, jumping back to
According to the step of in, continue iterative calculation until it is determined that the best fit of the single bore tunnel profile coordinate point data is oval bent
Line, if it is not, then terminating iterative calculation；
Display module, described display module include the first display sub-module and the second display sub-module, the first display sub-module
For showing true tunnel contour coordinate point data elliptic curve, and the fitted ellipse curve that is calculated by simulating and most
Good fitted ellipse curve, and ovality, major semiaxis, semi-minor axis, major axis and the short axle being calculated；Second display sub-module,
For in the Fitting Calculation, showing simulation calculating progress in good time according to the quantity of fitting data file, meanwhile, simulation is calculated into knot
Fruit is shown by the form of picture.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186487A (en) * | 2018-08-17 | 2019-01-11 | 芜湖安普机器人产业技术研究院有限公司 | A kind of pipeline ovality automatic checkout equipment and its detection method |
| CN109211167A (en) * | 2018-09-03 | 2019-01-15 | 山东大学 | A kind of tunnel double-lining thickness accurate detecting method based on function curve fitting |
| CN109211167B (en) * | 2018-09-03 | 2021-06-01 | 山东大学 | Tunnel secondary lining thickness accurate detection method based on function curve fitting |
| CN109374644A (en) * | 2018-11-09 | 2019-02-22 | 中国矿业大学 | Tunnel-liner defect intelligent measurement imitative experimental appliance based on image recognition |
| CN111504224A (en) * | 2020-04-30 | 2020-08-07 | 中铁工程装备集团有限公司 | Pipe sheet roundness detection device and detection method |
| CN111504224B (en) * | 2020-04-30 | 2022-03-22 | 中铁工程装备集团有限公司 | Pipe sheet roundness detection device and detection method |
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